>>29496460vox is possessive by nature even without abo in the mix so he would definitely be extraaaa possessive of his brother-wife and their cute offspring. in a modern setting they would be in a monogamous relationship but i also like imagining a harem situation, ike is always the "main" wife in my head though. mysta is the cute concubine who gets doted on and everyone thinks he's the favorite. and fuuchan is happy because he gets to mother so many children! he doesn't mind having to share vox, after all, his brother loves him enough to add him to the harem despite what people may think!
>>29496900i personally don't, but i enjoy reading fic where they're three as well! because my wife can get spitroasted or dp'd that way. what's better than one possessive older brother grooming you? two of them.